beak [bi:k] n. (鸟等的)嘴，嚎；鸟嘴状物

【派生】utility n. 无用；徒劳；无价值

【例句】Education primarily influenced the capacity of abstraction and generalization in language.受教育年限主要影响语言的抽象、概括能力。

delicate oneself/sth. /to sth. /to doing sth. 把……奉献给……

delicate